Method and means for coloring paper



E. B. BREWSTER. METHOD AND MEANS FOR COLORING PAPER.

APPLICATION FILED MAR. 13, 1920.

1,407,247, 1 Patented Feb. 21, 1922.

-44 mygNToR To all mag concentaanns'r B4. naswsrna, or NEW roux, N. Y.

.TENT o FICE.

METHOD AND means roa COLORING PAPEBAQ Basws'rm, residing. at

Be it known that I. 'ERXEST B. a cltizen of the United States,

New York, in the county of Xew York and State of New York; have invented.certain new and useful Improvements in Methods and Means for ColoringPaper, of which the I following is a specification.

7 thereof.

Th1s invention has relation to a machine and method for coloring paper.and has for an object to providea device whereby paper may be coloredduring the process of manufacture, the color being applied to the pulp.

before the same has been pressed. J

Another objectof the invention is to pro- 'vide a machine for coloringpaper includ-- ing means for supporting the same in combination with apaper making machine, and, means for supporting a plurality of airbrushes whereby color may be sprayed upon the paper during the processof manufacture 3 In addition to t he foregoing this inventioncomprehendsimprovements and arrangements of parts to be hereinafterdescribed and partlcularlv set forth in the appended claims.

In the. accompanyin drawings in which similar and corresponding partsare designated by the same characters of reference throughout theseveral views in which they J Fi of the machine, and

' Figure 3 is a transverse section showing in detail the. manner ofmounting the air brush.

- With reference to the drawings. 10 indie cates the longitudinal framemembers of a paper making machine and 11 a supporting roller settingtransversely thereof and mounted for rotation. A frame-work formmgpartof my invention is provided consisting'of apair of upright members12, one moun ed on each of the frame members 10, preferably through themedium of flange couplings 13. The'members 12 may be of.

tubing. if desired. An upper transverse member 14 is provided supportedupon the upper ends of the members 1:2 through the medium 'of elbowcouplings 15. Mounted upon the member 14 is a pair of collars 16,

. ll I Specification of Letters Patent. Patented Feb, 21, 19220Application filed March 1a, 1920. 'Serial m. 865 561.

one at each end of themember 1-1 each collar I carrymg .a'descending ear1?. Depending from each member 17 is anarm 18 having a coupling '19secured to its u per end whlcli' is perforated to receive a ho t or thelike 20 passing therethrough and entering the member 17 topivotally'support said member 18 for osclllation in its transversedirection. Each member 18 carries at its lower end a coupling 21 whichis formed with a trans,

place an air brush 28 introduced into thesleeve 26. 'These air brushesare of conventional type. The color and compressed air are introducedinto the brushes through the tubular connections 29. Mounted on eachframe member 10 is a receptacle30 for the purpose ,of collecting excesscolor which is not received upon the paper. A link 31 is pivotally.connected to onev of. the members 18 and is adapted -to be-oscillatedby any suitable means such as a cranik and pitman.

In operation the pulp is usually spread upon a screen, thepulp coveredscreen be- .ing indicated at 32. Asthe screen carrying the pulp travelslongitudinally in the machine and over the roller 11', the air brushes28 spray the color upon the paper, and-to insure a uniform field ofcolor upon the pulp the bar Q-tis osclllated longitudinally, the

same being supported upon the members 18 which are pivotally mountedupon. the bolt 20. If the-field of color is to be light, or,

if the pulp is to be merely tinted the bar 24 1s 'rockedso as to disposethe brushes horizontally or to direct the spray upwardly.

.However, if you desire to apply a heavy and uniform color to thepulpthe brushes 28 .are directed. downwardly by rotating the bar 2-1..Anv tintmay be obtained by adjusting the bar 24. A different effect maybe ob- 1 tainedby reducing the air-pressure on the brushes so that thespray leaves the brush in the form' of a spatter or small drops. Anothereifect can. be obtained by spraying or moiste plain paper with alcohol,water or other hquidtoflproduce a roughened or blistered surface,

paper receiving the color on onesjd'e only.

r10 e raised portion of the Rainbow efiects can likewise be produced byspraying difierent colors through the different brushes. sprayed orspattered with suitable liquid producing a marble efiect. My intentionpaper, already made may be passed under the-brushes which may be chargedwith any "suitable liquid which, issuing from the brushes spatters uponthe paper causing it to swell or blister and thereby produce an embossedefiect. This embossed paper is then passed again under the sprays orwhich are charged with color this time and directed upouthe surface atan angle so as to produce a shaded efiect upon the raised portions ofthe paper. Also, the paper may be passed through a machinehaying a dandyroll whichis a roller having an engraved or indented surface to produce,by pressure an embossed efiec-t upon the. paper, By passing the paperembossed in this manner through my machine so that the color is directedupon the surface at an acute'angle' 35 pulp, nevertheless it findsequally important used upon finished and valued use when paper.

While l have illustrated and described my invention with some degree ofparticularity, I realize that in practice various alterations thereinmay be made. I therefore reserve the right and privilege of changing theform of the details of construction or otherwise altering thearrangement of the correlated parts without departing from the spirit ofthe inventionor the scope of the appended claims.

Having thus described my invention what ll claim as new and desire tosecure what is described by United States Letters Patent 1. Incombination with a. paper making machine including the frame and'screenfor supporting the pulp, a frame work, mounted upon the paper makingmachine frame depending arms mounted on said frame work. a bar carriedby the lower end of sa d arms,

Coated paper may be may be utilized in another way, namely organ? saidbar extending in a direction at right angles to the direction ofmovement of the screen, means mounting said bar to permitrotatableadjustment thereof axially, and a plurality of air brushes mounted onthe bar and lying in a direction parallel to the direction of travel ofthe screen.

2. lln combination with a paper making machine includin the framefandrscreen for a supporting the pu p, a support mounted over the screen forrotation in a plane at rightangles to the plane of the screen, aplurality of air brushes carried by the support to spray upon thescreen. said support when ro-- tated varying the angle between the planeof the screen and the direction of discharge of the spray, and means foroscillating the support in a direction transversely to the direction ofmovement of the screen.

3. In combination with a paper making machine includingthe frame andscreen for supporting the pulp, a supporting meansmounted on the frame,a pair of bars depend lug from the support for oscillation in adirection at right angles to the plane of movement of the screen, a barsupported at 7 its ends upon the lower ends of the first mentloned bars,the last mentioned barbeing rotatable in a plane at right'angles, to theplane of movement of the first mentioned bars and to the plane ofmovement of the screen, a plurality of air brushes carried by the lastmentioned bar and located substantiallv parallel to the direction ofmovement of the screen, and means for oscillating the lastmentione'dbar.

at. In combination with a paper making machine includingthe frame aridscreen for supporting the pulp, a bar extending trans-v versely of thescreen and mounted for movement in the dlrection of its longitudinalaxis pnsrus'r n. nnnwsrna. Witnesses: A

Cnas. W. RIDER, Cm-turns it. ll-lnarrrr,

Ins -.11

